Malicious Code Injection in resident_frog_z3n Package - npm Vulnerability
Summary
MAL-2025-107929: Malicious code in resident_frog_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The resident_frog_z3n package is part of the npm ecosystem, primarily used for various JavaScript applications. It is associated with the tea.xyz token reward campaign, which has been linked to a series of malicious packages flooding the npm registry. This package is designed to manipulate package metadata and publish derivative versions, posing a significant risk to developers and their projects.
Vulnerability Detail
The vulnerability in the resident_frog_z3n package stems from its malicious code, which modifies the package.json file to remove private flags and alters version numbers. It generates random package names, often themed around Indonesian culture, and continuously republishes these variants to the npm registry. This behavior not only inflates developer reputation scores fraudulently but also pollutes the npm ecosystem, making it difficult for legitimate packages to be discovered and used.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall resident_frog_z3nIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, you can prevent the installation of this malicious package by using npm's package-lock.json file to lock your dependencies. Additionally, consider using the following command to audit your packages for vulnerabilities: npm audit.
Conclusion
The resident_frog_z3n package poses a significant security risk due to its malicious code that alters package metadata and publishes unauthorized versions. It is essential for developers to remove this package and monitor their projects for vulnerabilities to maintain the integrity of their applications.
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FAQ
The resident_frog_z3n package is an npm package associated with the tea.xyz token reward campaign, which has been identified as containing malicious code.
This vulnerability can lead to unauthorized modifications of your package metadata, potentially affecting your project's integrity and reputation.
You should immediately remove the resident_frog_z3n package from your project and check for any other potentially malicious packages.
You can use tools like Vulert, which monitors your package-lock.json file for open-source vulnerabilities in real-time without requiring code access or installation.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.
